1. The truth table for an exclusive-or gate is given below in the figure.

a. Draw a logic circuit to implement this function.

b. Draw an equivalent circuit made entirely from NOR gates.

2. a. Calculate the collector current for the circuit below, assuming that this current is 99 times the base current and that the base-to-emitter voltage is 0.7

b. Calculate the emitter current.

c. Calculate the power dissipated by the transistor.

3. a. Calculate the collector current for the circuit below, assuming that this current is 99 times the base current and that the base-to-emitter voltage is 0.7.

b. Calulate the power dissipated by the transistor.

4. Calculate the impedance, Z = R + jX , of the circuit shown below, for the frequency at which the transmission lines (Zo = 50) have electrical lengths of /4 and /4, as indicated.

5. The circuit below contains an ideal op amp.

a. Find the value of the voltage gain, Vout/Vin, for very low frequencies.

b. Find the value of the voltage gain for very high frequencies.

c. Derive an expression for the voltage gain for an arbitrary frequency, .

6. The circuit below is the output stage for an audio amplifer. If the amplifier is delivering a

32-watt (avg. power) sine wave to the speaker, find

a. the peak-to-peak voltage value of Vin.

b. the power dissipated by the transistors as heat.